反应条件
1: 93 percent / 1.) aq. 48percent HBr, bromine; 2.) aq. sodium nitrite / 1.) -20 deg C, 90 min; 2.) 15 deg C, 1 h 45 min 2: 50 percent / potassium permanganate / aliquat-336 / H2O / 4.5 h / Heating 3: 1.) phosphoric chloride, phosphoryl chloride; 2.) sodium borohydride / 1.) reflux, 90 min; 2.) water, 0-15 deg C, 2 h View Scheme
